Evolutionary Tuning of Dual-Active Bridge Strictly Proper Discrete Robust Controller

Abstract

This work deals with the DC-DC dual active bridge converter output voltage strictly proper discrete control problem against high-level complex requirements. Due to nonlinearities of the converter (obtained from GSSA modelling technics), the complexity of requirements and uncertainties of parameters, evolutionary optimization coupled with discrete H-infinity technics has been envisaged in this work. Because this optimization technic doesn't need the formulation of gradients of criterion to be optimized, it appears to be well adapted to the industrial framework where requirements are often non-linear and complex. A theorical background of the method is given in this paper and its efficiency is shown through the DAB converter robust output regulation problem.